It is turning out to be a good year so far for David Einhorn’s Greenlight Capital, though it might have been even better if Einhorn had kept betting against J.C. Penney Company, which he calls his “most profitable short of 2012.” He still doesn’t believe the embattled retailer is going to succeed, but he played it safe and covered his short positions in April, around the same time the board ousted CEO Ron Johnson, only to see the stock drop further this week.
